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N,O-Bis(trimethylsilyl)acetamide

synthesis grade, ≥95%

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Synonym(s):
BSA
Linear Formula:
CH3C[=NSi(CH3)3]OSi(CH3)3
CAS Number:
Molecular Weight:
203.43
Beilstein/REAXYS Number:
1306669
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

grade

synthesis grade

Quality Level

assay

≥95%

form

liquid

refractive index

n20/D 1.417 (lit.)

bp

71-73 °C/35 mmHg (lit.)

density

0.832 g/mL at 20 °C (lit.)

SMILES string

C\C(O[Si](C)(C)C)=N/[Si](C)(C)C

InChI

1S/C8H21NOSi2/c1-8(9-11(2,3)4)10-12(5,6)7/h1-7H3/b9-8+

InChI key

SIOVKLKJSOKLIF-CMDGGOBGSA-N

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General description

N,O-Bis(trimethylsilyl)acetamide(BSA) is a powerful silylating agent for the protection of amides, amines, alcohols, carboxylic acids, enols and phenols. It can also be used as a Bronsted base precursor in Tsuji–Trost reactions. Additionally, it can be used to activate different functional groups during the production of nucleosides, peptides, and heterocycles.

Application

Derivatization reagent for GC-MS analysis of phenolic acids in fruits.
Reagent for the regioselective desulfation of polysaccharide sulfates. Also used to prepare trimethylsilyl ethers of carbohydrates and alcohols.

Features and Benefits

BSA is good moisture absorbent.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Flam. Liq. 3 - Skin Corr. 1B

supp_hazards

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

111.2 °F - closed cup

flash_point_c

44 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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